The BART Police Department is releasing images of the suspect wanted for fatally stabbing 18-year-old Nia Wilson and wounding her sister at MacArthur Station Sunday night. BART police officers were already at MacArthur Station when the incident occurred at approximately 9:36 pm and were flagged down about a male suspect on the platform with a knife.

Officers arrived on the platform and found two women suffering from stab wounds. Officers immediately began rendering aid to the victims until paramedics arrived. Nia Wilson succumbed to her injuries and was pronounced dead at the scene. Her sister was taken to a nearby hospital.

It appears both the suspect and victims boarded a BART train at Concord Station at the same time and then off boarded at MacArthur. BART detectives have carefully reviewed video from surveillance cameras on the train the victims and suspect were riding on as well as platformvideo at MacArthur Station.

The attack happened on the MacArthur platform. BART detectives are sharing images from the surveillance videoswith other law enforcement agencies as well as the public. Investigators also recovered valuable evidence at the scene of the crime.

All of that has helped BART Police to identify the suspect as 27-year-old John Lee Cowell. Cowell is Caucasian, stands 5’ 8”, and weighs 190 pounds. Cowell has short, dark hair as well as a closely croppedbeard and mustache. Cowell should be considered dangerous and anyone who sees him should immediately call 9-1-1.

Cowell is in custody!

An hour ago, the SF BART Police tweeted:

Murder suspect now in custody!

BART Police took him into custody at Pleasant Hill BART. Full details to come and Chief availability at Rockridge BART at 8pm.